[  747.622212][T20944] veth0: entered allmulticast mode
[  747.622584][T20944] veth1: entered allmulticast mode
[  747.622825][T20944] veth2: entered allmulticast mode
[  747.623052][T20944] veth3: entered allmulticast mode
[  758.640352][T20944] veth0: left allmulticast mode
[  758.640629][T20944] veth1: left allmulticast mode
[  758.640828][T20944] veth2: left allmulticast mode
[  758.641026][T20944] veth3: left allmulticast mode